Nokia Debuts Lumia 1520 with 6-Inch HD Screen

nice!

The biggest improvements that caught my eye, quad core and microSD support. It would be great, if that meant installing apps, or at least backups of apps to the SD. When apps get D-listed, you still have a backup of the app you can reinstall, if you have to reset your phone. Of course, MS could avoid all this, if they offered off-line storage for that purpose or allow you to back up to SkyDrive.